PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/02-15:28:00
G02     297.9          80.1                7.8 +/-    0.66       8.0 +/-    0.66  0.060 / 0.090
G05     167.8          27.3               10.0 +/-    1.22      18.6 +/-    1.22  0.060 / 0.100
G06     40.3           44.2                6.1 +/-    0.87       8.3 +/-    0.87  0.030 / 0.030
G12     317.7          65.9                7.9 +/-    0.57       8.6 +/-    0.57  0.030 / 0.020
G17     80.1           16.6                7.3 +/-    1.19      17.4 +/-    1.19  0.160 / 0.160
G19     70.6           28.6                7.4 +/-    1.09      13.3 +/-    1.09  0.200 / 0.170
G24     233.7          26.4                8.8 +/-    2.04      16.6 +/-    2.04  0.080 / 0.130
G25     317.4          23.0                6.5 +/-    2.19      13.4 +/-    2.19  0.080 / 0.110